4 results about "Vestibule" patented technology

The utility model provides a kind of safety shell ring corridor's ventilation system, the safety shell ring corridor's ventilation system includes the first exhaust system, second exhaust system and third exhaust system for gas flow of safety shell ring corridor and safety shell outside. Among them, first exhaust system is set in first fire compartment, second exhaust system is set in second fire compartment, and first fire compartment and second fire compartment are physically separated. By designing two independent and mutually redundant first exhaust system and second exhaust system, for accident condition, collect the gas leakage from inner layer safety shell to safety shell ring corridor and the gas flow in safety shell ring corridor from outer layer safety shell, to reduce the radioactive gas leakage amount in safety shell ring corridor as far as possible, ensure the working stability of entire ventilation system. While third exhaust system maintains the negative pressure in safety shell ring corridor not less than design reference under normal condition.

The utility model discloses a kind of for facilities agricultural glass greenhouse's entrance hall mounting structure, comprising: big shed main body, entrance hall group and wind shower group;Entrance hall group includes the first entrance hall and the second entrance hall of adjacent arrangement;Second entrance hall is installed at the entrance of big shed main body;Wind shower group is installed in the first entrance hall. The setting of double entrance hall, through the adjacent structure of first entrance hall outside buffer, second entrance hall inside transition, forms the transition of outside environment→first buffer cavity→second buffer cavity→greenhouse interior, makes hot air direct convection, makes door area heat exchange efficiency reduce, the setting of three-stage switch door, first switch door controls outside, second switch door separates buffer cavity, third switch door is connected greenhouse, progressive opening and closing logic, further avoid the defect of door leakage heat.

The utility model discloses a novel rotary vestibular function detector, including the barrel base, the barrel base: its upper surface rotation is connected with the barrel, and the barrel is stainless steel edge -lined barrel, and the rear side inner wall middle part of barrel is equipped with the visual strip, and the front surface of barrel base is equipped with the support frame, and the mouth shape frame bottom wall of support frame is equipped with the chin support, and the mouth shape frame upper end of support frame is equipped with the forehead support, and the rear side middle part of barrel is rotatably connected with the cylinder through the bearing, and the outer arc surface of cylinder is hung with the positioning top through the lifting rope, and the lifting rope is installed in cooperation with the scale line of the rear side of barrel, and the novel rotary vestibular function detector, through the change of the base four -wheel support barrel rolling to the track type, avoids the displacement, the slippage phenomenon such as slipping of cylinder in the process of rotating, changes chin support to chin forehead support integration, avoids the friction surface in the process of barrel rotating, increases the comfort degree of the measured personnel, and the head of the measured personnel is positioned conveniently and quickly.

Composition for a polyamide-based multilayer structure usable as a card. The present invention relates to a composition comprising a polyamide matrix predominantly composed of at least one polyamide having a C / N ratio greater than or equal to 8 and 5 to 20% by weight of a reinforcing filler having an aspect ratio between 2 and 9. The invention also relates to a method for preparing a film of said composition. The invention further relates to a structure that can be used as a data-carrying card, such as a card to secure an electronic identity, a bank card, an identity card, a smart card, a card to control access to a space, such as a building, a room, an entry vestibule, an elevator, a storage space such as a cabinet, a drawer, a safe, or a card to control networks and computers.